Mine Tunnel Roof Support Self Drilling Rock Hollow Grouting Anchor Bolt

Product Details
Customization: Available
Application: Machinery, Environmental, Building
Finish: Black
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  • Mine Tunnel Roof Support Self Drilling Rock Hollow Grouting Anchor Bolt
  • Mine Tunnel Roof Support Self Drilling Rock Hollow Grouting Anchor Bolt
  • Mine Tunnel Roof Support Self Drilling Rock Hollow Grouting Anchor Bolt
  • Mine Tunnel Roof Support Self Drilling Rock Hollow Grouting Anchor Bolt
  • Mine Tunnel Roof Support Self Drilling Rock Hollow Grouting Anchor Bolt
  • Mine Tunnel Roof Support Self Drilling Rock Hollow Grouting Anchor Bolt
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Basic Info.

Model NO.
METAL BAR
Head Style
Round
Material
Stainless Steel
Type
Round Head
Metal Bar Diameter(mm)
22
Connection
Hinged Bolts
Transport Package
Wooden
Specification
Anchor Bolt
Trademark
China Coal
Origin
China
Production Capacity
100000 Sets Per Month

Product Description

Mine Tunnel Roof Support Self Drilling Rock Anchor Bolt Introduction

Concrete Anchor Bolts for Coal Mining is a bolting solution for unstable ground conditions such as sand, gravel, silt, and clays, and in soft to medium fractured rock formations.
For projects facing above geo-conditions, hollow bar self-drilling anchor should be considered as the main solution cuz it's designed for optimized installation, tailored to the project's needs.
By drilling a hole in collapsing soil or loose lock, with a sacrificial drill bit an a hollow bar, and after the drilling operation injecting cementitious grout or resin into the hollow bar and surrounding cavity, it's a top solution choice.
 

Mine Tunnel Roof Support Self Drilling Rock Anchor Bolt Parameter

Type METAL BAR Diameter(mm)   anchoring KN
deformed steel bar 6s≥335MPa φ22 >125
φ20 >105
φ18 >85
φ16 >75
round steel bar 6s≥235MPa φ22 >90
φ20 >70
φ18 >60
φ16 >50
d length
1400 1600 1800 2000 2200 2400 2600
φ16 - + + + - - -
φ18 - + + + + - -
φ20 - - + + + + -
φ22 - - - + + + +
 
  SPEC.
 
MATERIAL
 
BEARING CAPACITY
 
(kn)
 
HIGH-STRENGTH PLATE(Spherical)
 
SIZE
 
(mm)
 
BEARING CAPACITY (kn)
 
BORE DIAMETER
 
(mm)
 
All-Thread Rebar Rock Bolt
 
DQ-16
 
HRB335
 
≥100
 
120×120×6
 
≥125
 
23
 
DQ-18
 
HRB335
 
≥125
 
120×120×8
 
≥170
 
23
 
DQ-20
 
HRB335
 
≥155
 
120×120×8
 
≥170
 
26
 
DQ-22
 
HRB335
 
≥185
 
150×150×8
 
≥220
 
26
Mine Tunnel Roof Support Self Drilling Rock Anchor Bolt Photos
Mine Tunnel Roof Support Self Drilling Rock Hollow Grouting Anchor BoltMine Tunnel Roof Support Self Drilling Rock Hollow Grouting Anchor BoltMine Tunnel Roof Support Self Drilling Rock Hollow Grouting Anchor BoltMine Tunnel Roof Support Self Drilling Rock Hollow Grouting Anchor BoltMine Tunnel Roof Support Self Drilling Rock Hollow Grouting Anchor Bolt

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